文档介绍：题目:
高山发射基站PLC自动控制和保护系统的设计
摘要
随着移动通信事业的迅速发展,移动通信设备都投入大量昂贵的设备及仪器仪表,同时随着业务的不断扩大,为保证通信的顺利进行,务必要设立了星罗棋布的基站。为了保证贵重而精密的仪器的全天侯正常工作,基站的环境、系统设备的工作都异常重要。现在大多数基站的管理都是靠人专管或二十四小时轮流值班的方式对基站进行管理,基站环境状况参数、系统设备的状态都是靠人工报表来完成。这样既浪费人力资源、缺乏科学管理,而且因为人为失职而造成的烧机、死机、停电、燃烧、水侵、失盗等频频发生,给经济效益及社会效益造成巨大损失。所以基站的动力设备及环境的自动监控日益受到高层领导和广大职工的重视。
本文介绍了地处高山无人管理的无线发射基站常见故障及其危害,以对比的方式探索地分析了产生这类故障的原因和解决的办法,详细阐述了利用PLC(带模拟输入、输出扩展模块)实现无线发射基站自动控制和保护的设计方案。
关键字: 发射基站;发射机;PLC;控制和保护;电池组
Abstract
With the fact that promptness moving the municating by letter develops, munication equipment throwing into large amount of expensive equipment and instrument appearance , expand at the same time with the business ceaselessness , be to ensure municative smooth is in progress , to be going to have set up the base stand as numerous as stars and checkers on the chessboard without fail. For valuable but accurate instrument of guarantee all day long regular job of marquis, base stand environment , system equipment job are all extraordinarily important. Now great majority bases stand administration all is that the situation carrying out administration , the base stand environment on base stand is parametric , system equipment state ing being to depend on the manpower form for report by the person end tube or the way being on duty by turns twenty four hours. And now that such wasting human resources , being short of scientific management, fever machine , dead machine , power failure, burn , water infringing upon , being burglarized and so on frequently happens because of person bring about to neglect the duty, be caused enormous losses by economic effect and social benefits. Base stand driving force equipment and the environment automatic monitoring are regarded highly by high-rise leader and extensive staff and worker therefore gradually.
This paper presents mom malfunction and the hazard of a radio transmitting station located alone in a high mountain without any supervision. The paper also analyses the cause for malfunct